From: Joel Stanley <joel@jms.id.au>
To: Russell Currey <ruscur@russell.cc>
Cc: linuxppc-dev@lists.ozlabs.org,
Christophe LEROY <christophe.leroy@c-s.fr>,
Michael Ellerman <mpe@ellerman.id.au>,
ajd@linux.ibm.com, Daniel Axtens <dja@axtens.net>,
Nicholas Piggin <npiggin@gmail.com>,
kernel-hardening@lists.openwall.com
Subject: Re: [PATCH v5 5/5] powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig
Date: Thu, 31 Oct 2019 00:05:49 +0000 [thread overview]
Message-ID: <CACPK8XfOLfpq6Em7nPe7ef-5D2U-feN4A5u_+K=RrBGX2x=5ew@mail.gmail.com> (raw)
In-Reply-To: <20191030073111.140493-6-ruscur@russell.cc>
On Wed, 30 Oct 2019 at 07:31, Russell Currey <ruscur@russell.cc> wrote:
>
> skiroot_defconfig is the only powerpc defconfig with STRICT_KERNEL_RWX
> enabled, and if you want memory protection for kernel text you'd want it
> for modules too, so enable STRICT_MODULE_RWX there.
>
> Signed-off-by: Russell Currey <ruscur@russell.cc>
Acked-by: Joel Stanley <joel@jms.id.au>
> ---
> arch/powerpc/configs/skiroot_defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/configs/skiroot_defconfig b/arch/powerpc/configs/skiroot_defconfig
> index 1253482a67c0..719d899081b3 100644
> --- a/arch/powerpc/configs/skiroot_defconfig
> +++ b/arch/powerpc/configs/skiroot_defconfig
> @@ -31,6 +31,7 @@ CONFIG_PERF_EVENTS=y
> CONFIG_SLAB_FREELIST_HARDENED=y
> CONFIG_JUMP_LABEL=y
> CONFIG_STRICT_KERNEL_RWX=y
> +CONFIG_STRICT_MODULE_RWX=y
> CONFIG_MODULES=y
> CONFIG_MODULE_UNLOAD=y
> CONFIG_MODULE_SIG=y
> --
> 2.23.0
>
next prev parent reply other threads:[~2019-10-31 0:06 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 7:31 [PATCH v5 0/5] Implement STRICT_MODULE_RWX for powerpc Russell Currey
2019-10-30 7:31 ` [PATCH v5 1/5] powerpc/mm: Implement set_memory() routines Russell Currey
2019-10-30 8:01 ` Christophe Leroy
2019-10-30 7:31 ` [PATCH v5 2/5] powerpc/kprobes: Mark newly allocated probes as RO Russell Currey
2019-11-01 14:23 ` Daniel Axtens
2019-11-02 10:45 ` Michael Ellerman
2019-12-05 23:47 ` Michael Ellerman
2019-12-12 6:43 ` Russell Currey
2019-10-30 7:31 ` [PATCH v5 3/5] powerpc/mm/ptdump: debugfs handler for W+X checks at runtime Russell Currey
2019-10-30 7:31 ` [PATCH v5 4/5] powerpc: Set ARCH_HAS_STRICT_MODULE_RWX Russell Currey
2019-10-30 7:31 ` [PATCH v5 5/5] powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig Russell Currey
2019-10-31 0:05 ` Joel Stanley [this message]
2019-10-30 8:58 ` [PATCH v5 0/5] Implement STRICT_MODULE_RWX for powerpc Christophe Leroy
2019-10-30 18:30 ` Kees Cook
2019-10-30 19:28 ` Christophe Leroy
2019-10-31 0:09 ` Russell Currey
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